A more thorough explanation:

Definition: Leasing-making is a term used in Scottish law to refer to oral sedition, which means spreading false or malicious statements about someone or something with the intention of causing harm or inciting rebellion.

Example: In the 16th century, during the reign of Mary, Queen of Scots, there were many cases of leasing-making against her and her government. People would spread rumors and lies about her, her advisors, and their policies in order to undermine their authority and stir up unrest.

Explanation: Leasing-making is a serious offense because it can lead to social and political instability. By spreading false information, people can create distrust and division among the population, which can ultimately lead to violence and chaos. The example illustrates how leasing-making was used as a tool of political opposition in Scotland during a turbulent period in its history.